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  1. #1

    Forgot to turn off fuel selector switch and was left on for few hours??Any harm??

    Forgot to turn off fuel selector switch and was left on for few hours??Any harm??


  2. #2
    Formerly Ultra250 TN Aquaholic6801's Avatar
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    ....you have to rebuild the whole motor and jet pump system......

  3. #3
    Quote Originally Posted by Aquaholic6801 View Post
    ....you have to rebuild the whole motor and jet pump system......
    Really??!! Lol

  4. #4
    actually its not just the motor and the jet pump you have to rebuild, but also the fuel system, replace the tank, new fuel pump, lines, and also of course all of your your muffler bearings will need replacing. sorry man

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    You will also need to replace all the fiberglass. The gas fumes destroys it.

  6. #6
    You guys are funny but id hope ud help if i really needed help!! lol So i take the consensus to be true that nothing was bad about doing it lolol

  7. #7
    Fat Man, Little Boat Region8Ultra250X's Avatar
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    nope no harm done at all....

  8. #8

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    If there was pressure in tank it could have flooded the engine. Remote chance to get enough fuel in engine to do any harm. If you are too paranoid you can remove the spark plugs and crank over the engine a few times to clear out then reinstall the plugs and then you should be good to go. Make sure you ground out the ends as to not cause an explosion of gas fumes.

  9. #9
    Click avatar for tech links/info, donation request K447's Avatar
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    Quote Originally Posted by golferdude View Post
    Forgot to turn off fuel selector switch and was left on for few hours??Any harm??
    Normally, no.

    BUT if the fuel tank venting is stuck closed and the sun heats the hull, excess air pressure inside the fuel tank can force gasoline right through the carbs and dribble liquid fuel directly into the engine. Left long enough, this accumulated fuel can cause hydraulic locking of a piston (and engine damage) when the engine is next cranked.

    Also a potential fire/explosion risk from accumulation of fuel fumes inside the hull.

    This is why the fuel selector valve is there to begin with, it is a safety thing.

    Most of the time there is no issue at all, and many guys never turn the valve off. Of course, it is better practice to turn it off when not riding.

    This is also one of the reasons it is recommended to lift the seat and have a look-see before starting the engine after the machine has been sitting for a while. If you smell gasoline or see liquid gasoline inside the hull, do not press Start.

  10. #10
    This is how I run a jetski shop in the desert nmpeter's Avatar
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    Quote Originally Posted by K447
    Of course, it is better practice to turn it off when not riding.

    This is also one of the reasons it is recommended to lift the seat and have a look-see before starting the engine after the machine has been sitting for a while. If you smell gasoline or see liquid gasoline inside the hull, do not press Start.
    there have been quite a few incidents related to this over the years, so much in fact that I've seen warning stickers to remove the skis seat before fueling.

    No doubt within a few years we'll see bilge blowers on skis.

    Best practice on carb models, turn off fuel when not in use. BONUS You might have a real dumbass thief that thinks your ski just ran out of gas and they abandon it.

    a start attempt results in an explosion..couple of weeks ago:

    http://bostonherald.com/news_opinion..._ski_explosion

    A ski burns on the beach..video:

    http://media.theage.com.au/news/nati...n-3958759.html

    and the infamous "rental craft explosion"

    http://www.tampabay.com/news/publics...arwater/986799


    it's more common then you might think

    it's a fine idea to have a peek in the hull during an outing..and I do it a few times during the days when I'm out on the lake
    Last edited by K447; 09-07-2013 at 10:10 AM.

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